The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 19, 1991

Filed:

Oct. 23, 1989
Applicant:
Inventors:

Seiko Naganuma, Hachioji, JP;

Satoshi Haneda, Hachioji, JP;

Assignee:

Konica Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355251 ; 222D / ; 355245 ; 355259 ;
Abstract

A developing apparatus including a developer housing for holding a two-component type developer including toner and a carrier, and a toner housing holding toner to be used to replenish the developer. The developer housing and toner housing are interconnected by a passageway shaped so that toner supplied to the developing housing and the developer contained therein form an interface adjacent to the passageway, in the developer housing. By so shaping the passageway, the amount of toner added to the developer can be adequately controlled, without the use of regulating devices.


Find Patent Forward Citations

Naganuma, Seiko. (1991). Developing apparatus for an image forming apparatus (U.S. Patent No. 4993829). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4993829

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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